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Loans Receivable and Allowance for Credit Losses - Narrative (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan | Dec. 31, 2021 USD ($) loan
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans receivable | $ 4,468,476,000 | $ 4,275,178,000 |
PROVISION FOR CREDIT LOSS EXPENSE | 5,993,000 | 8,589,000 | $ 6,003,000
Provision for credit losses on unfunded loan commitments | $ 156,000 | 603,000 | 0
Amortized cost in troubled debt restructurings |  | 12,400,000 | 16,600,000
Financing receivable, troubled debt restructuring, allowance for loans |  | $ 2,200,000 | $ 2,600,000
Minimum period to be considered for loan to have defaulted | 90 days |  |
Loans modified as TDRs with a subsequent payment default | loan | 0 | 0 | 0
Principal balances forgiven in connection with loan restructuring | $ 0 | $ 0 | $ 0
Syndicated loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans receivable | 108,710,000 | 156,649,000 |
Unfunded Loan Commitment |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Financing receivable excluding accrued interest modified accumulated | 0 |  |
Commercial and Industrial |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans receivable | 726,442,000 | 791,911,000 |
Commercial and Industrial | Syndicated loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Loans receivable | $ 108,700,000 | $ 156,600,000 |

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
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